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StackOverflowException was unhandled: An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll
You have done few things which can lead you to troubles. The one I can see is the circular reference of Accounts, roles in AccountinRoles and vice versa. I have simplified your code though it's not the best design(But I believe in keeping things simple and stupid). You can keep your virtual properties if you really mean what the virtual properties are for in entities. This working and running fine. public abstract class BaseEntity { public int Id { get; set; } public DateTime CreatedOn { set; get; } } public class Account : BaseEntity { public string UserName { get; set; } public string Password { get; set; } } public class Role : BaseEntity { public string RoleName { get; set; } } public class AccountInRole { public int AccountId { get; set; } public

Categories : Asp Net Mvc

An unhandled exception of type 'System.StackOverflowException' occurred
Well, your MainBox creates an ApplicationProperties, which in turn creates a MainBox, which creates an ApplicationProperties, and so on ad infinitum. Obviously you need to break up this cycle. As your code stands right now you would probably want to remove the new MainBox() for the properties form and inject it afterwards, for example: ApplicationProperties ApplicationPropertiesWindow = new ApplicationProperties(); ApplicationPropertiesWindow.MainBoxWindow = this; And public partial class ApplicationProperties : Form { public MainBox MainBoxWindow { get; set; } }

Categories : C#

What does "An unhandled exception of type 'System.FormatException' occurred in mscorlib.dll" Mean?
Well I suspect the problem is this: Friend = System::Convert::ToInt32(FriendString); My guess is that FriendString isn't a valid integer. If this is user input, you should probably use Int32.TryParse so that you can detect this without resorting to exceptions. It's important to learn to read stack traces to see which method has failed and the last place in your code that's mentioned... and then diagnose the prolem further.

Categories : C++

An unhandled exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll
The error is pretty clear; your code is trying to step into a directory that you don't have access to - the c:$Recycle.BinS-1-5-18 directory (which, incidentally is the SID for Local System). It's rather unfortunate that this MSDN sample assumes that your program will have access to every single directory, which isn't very realistic. You can change your code to gracefully handle directories it doesn't have access to (catch the exception and keep on going). For example: if we change this line of the code sample: subSubDirs = subDir.GetDirectories(); Which is where I suspect you are getting that error to: try { subSubDirs = subDir.GetDirectories(); } catch (System.UnauthorizedAccessException) { subSubDirs = new DirectoryInfo[0]; } This will gracefully handle not being able to

Categories : C#

An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in mscorlib.dll
Here is the problem: if (applicationNameList.Contains(item.name)) { **countApplicationList[applicationNameList.IndexOf(item.name)]++;** } It should be like this if (applicationNameList.Contains(item.name) && countApplicationList.Count > applicationNameList.IndexOf(item.name)) { countApplicationList[applicationNameList.IndexOf(item.name)]++; }

Categories : C#

A first chance exception of type 'System.InvalidCastException' occurred in mscorlib.dll
First-chance exceptions happen when you are debugging and it is the .NET Framework's way of giving the debugger (i.e. Visual Studio) an opportunity to handle the problem. If the debugger is unable to resolve the first-chance exception, then it will become an exception that your code is expected to handle. If your code does not handle the exception, then ultimately the .NET Framework will handle it (i.e. yellow screen of death in ASP.NET). You can ignore first-chance exceptions, because they are intended for the debugger. In other words, your exception code (try-catch logic) will not let you interact with first-chance exceptions.

Categories : Vb.Net

Exception of type 'System.InvalidOperationException' occurred in mscorlib.ni.dll but was not handled
If startBreak1.Value is a string : if (startBreak1!= null) DateTime.TryParse(startBreak1.Value, out break1S); if it's a Nullable<DateTime> (and I think it is) DateTime break1S = startBreak1.HasValue ? startBreak1.Value : new DateTime()//or anything you want; or accept that break1S can be nullable : var break1S = startBreak1;

Categories : C#

An unhandled exception of type 'System.InvalidOperationException' occurred in System.Data.dll
You open your connection twice. As per documentation (SqlConnection.Open()): Exceptions InvalidOperationException - Cannot open a connection without specifying a data source or server. - or - The connection is already open. That is (probably) what causes the InvalidOperationException to be thrown.

Categories : Vb.Net

An unhandled exception of type 'System.AccessViolationException' occurred
not shure but I think you can't directly use the IsoStorageStream in the UI. try to write into a MemoryStream and use that memoryStream for the imageSource. //something like this using (var store = IsolatedStorageFile.GetUserStoreForApplication()) { using (var storeStream = store.OpenFile("file.bin", System.IO.FileMode.Open)) { var memoStream = new System.IO.MemoryStream(); storeStream.CopyTo(memoStream); return memoStream; } } otherwise, I don't understand why you do this : IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForApplication(); try { using (store = IsolatedStorageFile.GetUserStoreForApplication()) {...} } maybe another cause of bugs

Categories : C#

An unhandled exception of type 'System.TypeInitializationException' occurred in EntityFramework.dll
Read the message: Only one <configSections> element allowed per config file and if present must be the first child of the root <configuration> element. Move the configSections element to the top - just above where system.data is currently.

Categories : C#

Unhandled exception System.StackOVerflowException c#
The problem is that it seems for RandomSponsor partial view you have set _Layout.chtml as layout, so you have this scenario: _Layout.chtml calls RandomSponsor, RandomSponsor first load it's layout _Layout.chtml, _Layout.chtml calls RandomSponsor, RandomSponsor first load it's layout _Layout.chtml....till stackoverflow

Categories : C#

'System.ArgumentOutOfRangeException' occurred in mscorlib.dll
There seems to be no validation in the file content you're reading. .SubString() throws the ArgumentOutOfRangeException if the startIndex plus length indicates a position not within this instance. Therefore: RepDate = input.Substring(23, 6).Trim(); Could easily fail and throw this exception if the input only contains 10 characters.

Categories : C#

C# ToolStrip System.StackOverflowException was unhandled
I found error and change my code to : private void frm_showpdf_KeyDown(object sender, KeyEventArgs e) { switch (e.KeyCode) { case Keys.Up: ts_back.PerformClick(); e.Handled = true; break; case Keys.Left: ts_back.PerformClick(); e.Handled = true; break; case Keys.Right: ts_next.PerformClick(); e.Handled = true; break; case Keys.Down: ts_next.PerformClick(); e.Handled = true; break; } } Why C# Error At Line : if (!e.Handled) base.OnKeyDown(e); Advice Me Please.

Categories : C#

An unhandled exception of type 'System.NullReferenceException' Array of System::String
You are creating a new array of Picture but you are not filling the array itself with any pictures so when you try to access the element at location 0 you will get null which is why you are getting the exception, you should do something like: TrackPicOnSlide = 2; array<Picture::Picture^>^ ArrayPics = gcnew array<Picture::Picture^>(TrackPicOnSlide); ArrayPics[0] = gcnew Picture; ArrayPics[0]->path = "HI"; // etc..

Categories : Dotnet

A first chance exception of type SocketException occurred in System.dll
Could be a number of reasons. Or the exception is caused and handled within the .Net framework itself. So ignore it and see whether your application works. It could be the firewall. Turn it of to be sure. Are you sure you are connecting to the right host + port ? Is the host pingable in the network? Are you able to open the port with telnet?

Categories : Vb.Net

An unhandled exception of type 'System.NullReferenceException' occurring when clicking TreeNode
You need to debug your code. I assume you are using Visual Studio, if so then do this: Go to the Debug menu. Click on the the Exceptions... choice. The following dialog should appear: Note the Common Language Runtime Exceptions checkbox is checked. Upon clicking OK, now when you debug your code anytime an exception is thrown by your code or the .NET Framework, the debugger will halt on the line that threw the exception. This makes finding where something is "breaking" much easier.

Categories : C#

having this error called "A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll"
There are first chance exceptions and second chance exceptions; second chance exceptions are the ones that your code attempt to handle, while first chance exceptions are "seen" by the debugger. In other words, first chance exceptions only matter when you are debugging. Here is some MSDN documentation on First and second chance exception handling

Categories : Vb.Net

A first chance exception of type 'System.Windows.Markup.XamlParseException' occurred in System.Windows.ni.dll
Have you tried it without the async? Also, the example in the documentation uses EventArgs rather than RoutedEventArgs, but I'm not sure that should cause the exception you're seeing.

Categories : C#

Compile error: A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll
You can use Decimal.TryParse - IsNumeric() is not necessarily the best choice for checking if something is a number which you can use. Private Sub bnOK_Click(sender As Object, e As EventArgs) Handles bnOK.Click Dim decMidPointValue As Decimal If Decimal.TryParse(txtMidPointValue.Text, decMidPointValue) Then ' decMidPointValue contains the parsed value. Obj.lblAnnualMid.Text = decMidPointValue.ToString("C") Obj.lblHourlyMid.Text = (decMidPointValue / 52 / 40).ToString("C") ' more code... Else ' could not be parsed as a Decimal; decMidPointValue is zero. ' inform user. End If End Sub

Categories : Vb.Net

External Exception was unhandled. A generic error occurred in GDI+. only on second call
Ensure that you are properly using or calling Dispose() on each of the GDI objects... Including your Bitmap and Image. This should resolve your issues. It's likely you're not releasing unmanaged resources properly.

Categories : C#

Event code: 3005 Event message: An unhandled exception has occurred while attaching excel
According to Microsoft when Slicer class is used, columnCount should be less or equal 20000. That's a built-in limitation.

Categories : Asp Net

C# - unhandled exception "System.NullReferenceException"
You need to use the logical AND operator (&&) instead of the bit-wise AND operator (&), change your code to this: if (checkKey(path) != null && checkKey(path).GetValue(subpath) != null)

Categories : C#

System message unhandled exception
You have corrupted some memory. This is the root cause. Win32 layer keeps some of its data in the memory of the process. Once you corrupt it, Win32 functions may crash. Remove everything from your application and leave just the message pump. This should work. After that add stuffs in small chunks. If you will be careful enough, you will notice what part introduces memory corruption.

Categories : C++

Why does using system.messaging in Unity cause an Unhandled Exception?
Unity does not share resources with Mono, so even if Mono has access to a library it does not mean that Unity also have acces to it. Unity strives to make your projects as light as possible, so you need to manually add the required dlls to your project. One of these ways should work for you: Way 1: Add specific libs to your Unity3d project Step 1: Create a "Plugins" folder in the assets folder of your project. Step 2: Copy the missing libraries (.dlls) you want from their folder: Path to unityUnityEditorDataMonoBleedingEdgelibmono2.0 to the folder you created on step 1 *Also note that in such a way it is possible to add some .NET 3.5 and above functionality (I have used it successfully with System.Xml.Linq.dll and System.Linq.dll) Way 2: Add a larger subset of Mono-supported 2.0 libr

Categories : C#

"An exception occurred while processing your request. Additionally, another exception occurred while executing the custom error page..."
First, set customErrors = "Off" in the web.config and redeploy to get a more detailed error message that will help us diagnose the problem. You could also RDP into the instance and browse to the site from IIS locally to view the errors. <system.web> <customErrors mode="Off" /> First guess though - you have some references (most likely Azure SDK references) that are not set to Copy Local = true. So, all your dependencies are not getting deployed. Get to the detailed error first and update your question. UPDATE: A second option now available in VS2013 is Remote Debugging a Cloud Service or Virtual Machine.

Categories : Asp Net Mvc

getting unhandled exception type malformed url exception
It seems like your program can't connect to the URL. Are u using internet behind proxy? If so, then make sure ur program is configured accordingly. One way is to use this code: System.setProperty("http.proxyHost", "proxy.mydomain.com"); System.setPropery("http.proxyPort", "8080");

Categories : Java

HttpWebRequest unhandled "invalidcastexception" casting HttpWebResponse to System.Exception
I have not used this async task library ever, and forgive me if this is a naive question. But.. arent you calling the wrong EndGetXXX function? request.BeginGetResponse(cb => logService.EndGetRequestStream(cb), null); I dont know what that logService variable is, but shouldnt it be invoking EndGetResponse() instead?

Categories : C#

Java - "Unhandled exception type IOException"
You might want to use a try{ //your code } catch(IOException ioEx) { ioEx.printStackTrace() // or what ever you want to do with it } Also like mentioned you might want to look at Files

Categories : Java

Invalid cast from 'System.Int32' to 'System.Nullable`1[[System.Int32, mscorlib]]
For above I could simply write int? nVal = val Actually, you can't do that either. There is no implicitly conversation from object to Nullable<int>. But there is an implicit conversation int to Nullable<int> so you can write this; int? unVal = (int)val; You can use Nullable.GetUnderlyingType method. Returns the underlying type argument of the specified nullable type. A generic type definition is a type declaration, such as Nullable, that contains a type parameter list, and the type parameter list declares one or more type parameters. A closed generic type is a type declaration where a particular type is specified for a type parameter. Type t = typeof(int?); //will get this dynamically Type u = Nullable.GetUnderlyingType(t); object val = 5; //will get th

Categories : C#

An exception occurred while invoking executor 'executor://mstestadapter/v1': Type is not resolved for member
I my case, this was a null reference behind the scenes. You should investigate where the type is used where he is complaining about. If you find it you can debug it by inserting the following line's of code: Debugger.Attach(); Debugger.Break(); To fix it, you can do a better test setup or use the following line to skip the code generating the error. var processName = Process.GetCurrentProcess().ProcessName; if(processName == "vstest.executionengine.x86"){ /*Do something else*/ } What I also suspected is [assembly: AssemblyCulture("")] because the test that failed depended on the Culture and I'm assuming the test runner runs without culture.

Categories : Dotnet

System.Reflection.TargetParameterCountException' occurred in System.Windows.Forms.dll
I guess The C++/CLI Invoke mistakes your array< String^ >^ for the array< Object^ >^ it expects to hold a parameter list. You should try wrapping your array< String^ >^ inside an array< Object^ >^. array <String^ > ^COM_PORTS = this -> SerialPort ->GetPortNames(); array <Object^ > ^parameters = gcnew array <Object^ >(1); parameters[0] = COM_PORTS; this->Invoke (gcnew WriteCOMPortDelegate(this, &MainForm::WriteCOMPortPannel), parameters);

Categories : Visual C++

An exception of type 'System.Net.WebException'
Here is the gist of the problem - the WebException is a generic way to tell you that something went wrong with the connection without necessarily telling you what it is. It is all-encompassing, if you want to look at it this way. To actually get the reason the problem showed up, you will need to read the response inside the catch block - the server will give you more details.

Categories : C#

Exception of type 'System.OutOfMemoryException' was thrown.
This problem usually occurs when some process such as loading huge data to memory stream and your system memory is not capable of storing so much of data. Try clearing temp folder by giving the command start -> run -> %temp%

Categories : Asp Net

DateTime, an exception of type 'System.InvalidOperationException'
I am not an expert of Windows Phone, but it seems to me that the Value property of a TimePicker control is defined as DateTime? meaning a nullable DateTime. When you try to assign it to a DateTime variable (that cannot accept null values) and the TimePicker is null you get the InvalidOperationException You could try with startBreak1 = startBreak1.Value ?? DateTime.MinValue;

Categories : C#

Why when downloading images from a website im getting exception: An exception occurred during a WebClient request?
http://vanessawest.tripod.com/bundybowman.jpg Are you sure that's the one causing problem? My guess is that your are getting some unwanted characters in the local file name because of your string split logic to get to the file name. string[] arr = src.Value.Split('/'); imgg = arr[arr.Length - 1]; Instead, try this: imgg = Path.GetFileName(new Uri(src.Value).LocalPath);

Categories : C#

system.stackoverflowexception Cannot evaluate expression because the current thread is in a stack overflow state
This if (leftHand == rightHand) change to if (object.ReferenceEquals(leftHand, rightHand)) You probably redefined the == operator to call Equals. And I hope you don't have an implicit operator that from string creates StringType, because otherwise if ((leftHand == "0") || (rightHand == "0")) will probably call itself for the same reason. Probably if ((leftHand.myValue == "0") || (rightHand.myValue == "0")) would be better.

Categories : C#

Unhandled exception in Windows Service when using catch(Exception)
Define a handler for your AppDomain UnhandledException event: AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(MyHandler); void MyHandler(object sender, UnhandledExceptionEventArgs e) { // See the exception context here using e.ExceptionObject }

Categories : C#

Why do I get the exception: Could not load type 'xy' from assembly 'System.Xaml'?
You are properly missing the VisualStudio C++ Runtimes. This is a big problem with DevExpress so you may got another exception: FileNotFoundExeption that is "normal" on new PCs and DevExpress

Categories : C#

Type.GetType() throwing a StackOverflowException
Here are some relevant sounding pieces of information that may help from http://msdn.microsoft.com/en-us/library/w3f99sx1.aspx : To determine if there is a problem with your assembly try this: GetType causes loading of the assembly specified in typeName. You can also load an assembly using the Load method, and then use the GetType or GetTypes methods of the Assembly class to get Type objects. If you get an error on Load(assembly) then you know the problem isn't with the GetType() call. Also, make sure you're passing in the right type of assembly: GetType only works on assemblies loaded from disk. If you call GetType to look up a type defined in a dynamic assembly defined using the System.Reflection.Emit services, you might get inconsistent behavior.

Categories : C#

"A first chance exception of type 'System.BadImageFormatException' " after buildint on a 64-bit computer
Loaded 'C:WindowsMicrosoft.NetassemblyGAC_64mscorlib... Your program is running as a 64-bit process. Your DLL contains 32-bit unmanaged code. Kaboom. You'll need to force your EXE to run as a 32-bit process so that DLL can be loaded. Right-click your EXE project in the Solution Explorer window. Properties, Build tab, change the Platform target setting from AnyCPU to x86. On VS2012 and up tick the "Prefer 32-bit" option.

Categories : C#



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